93654636989 has 4 divisors (see below), whose sum is σ = 96884107260. Its totient is φ = 90425166720.

The previous prime is 93654636869. The next prime is 93654637003. The reversal of 93654636989 is 98963645639.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50532792025 + 43121844964 = 224795^2 + 207658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93654636989 is a prime.

It is a super-2 number, since 2×93654636989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93654630989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614735092 + ... + 1614735149.

It is an arithmetic number, because the mean of its divisors is an integer number (24221026815).

Almost surely, 2^93654636989 is an apocalyptic number.

It is an amenable number.

93654636989 is a deficient number, since it is larger than the sum of its proper divisors (3229470271).

93654636989 is a wasteful number, since it uses less digits than its factorization.

93654636989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229470270.

The product of its digits is 226748160, while the sum is 68.

The spelling of 93654636989 in words is "ninety-three billion, six hundred fifty-four million, six hundred thirty-six thousand, nine hundred eighty-nine".